एलिमेंट हैज 3 इलेक्ट्रॉन 3 प्रोटॉन 4 nutrons फाइंड इट्स एटॉमिक नंबर एंड mass नंबर
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Answered by
1
Answer:
mass no=7
atomic no=3
Explanation:
mass no= sum of proton and neutrons
atomic no=no of proton
Answered by
1
Answer:
mass no. 7 atomic no. 3
Explanation:
it's help full for u
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